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Task: Please add additional information to this article.
Input: The World Health Organization has warned of a potential second wave of coronavirus cases if countries do not continue to take preventive measures.
Output:
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The WHO has emphasized the need for continued social distancing measures to reduce the chance of a second wave of cases, such as wearing face masks when in public, physical distancing, avoiding large gatherings, and frequent hand-washing. Additionally, the organization is encouraging countries to increase testing capacity in order to detect any new cases quickly and enact targeted lockdowns when needed.